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submitted on 24.01.2020 and posted on 24.01.2020by Tomohiro Ogawa, Kazuki Takahashi, Sanjog S. Nagarkar, Koji Ohara, You-Lee Hong, Yusuke Nishiyama, Satoshi Horike
Herein, we focused on
coordination polymer (CP) glass as a hybrid, soft electrolyte to meet these
criteria. We applied a protic ionic liquid of which components work also as
bridging ligand to construct CP structure with Zn2+ ions. The
structural analysis of the CP glass reveals that network formation results in
enhancement of the properties of proton conductivity and viscoelasticity. The CP
glass features a high anhydrous proton conductivity (σ = 13.3 mS cm−1
at 120 °C) and high transport number of proton (0.94). Fabricated fuel cell
with this CP glass membrane exhibits a high open circuit voltage (0.96 V) and a
power density (0.15 W cm−2) under dry conditions at 120 °C.